Coding set 1

Good for whiteboarding

• Alien Dictionary
• 76. Minimum Window Substring
• 146. LRU Cache
• Search in Rotated Sorted Array II
• 498. Diagonal Traverse
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 315. Count of Smaller Numbers After Self
• 31. Next Permutation
• 341. Flatten Nested List Iterator
• Gas Station
• 82. Remove Duplicates from Sorted List II
• Max Points on a Line
• Word Search II
• Coin Change 2
• Best Time to Buy and Sell Stock IV